


K&N Filter Universal Rubber Filter 2 3/4 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Filter Universal Rubber Filter 2 3/4 inch Flange 6 inch Base 5 inch Top 6 1/2 inch HeightSKU: RU 4870 UPC: 024844101914 K&N RU 4870 Universal Clamp On Air Filter 2 3 4in Flange 6in Base 5in Top 6 1 2in Height K&N RU 4870 is a high flow universal clamp on air filter engineered for racing vehicles generators snowmobiles tractors and more with its 2. 75 inch flange 6 inch base 5 inch top and 6. 5 inch height. It fits popular models like 1999 2000 Honda Civic 2000 2005 Mazda Miata 2002 2006 Acura RSX and dozens of others. This washable
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Your K&N Filter Universal Rubber Filter 2 3/4 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height orders ship within 1-2 business days.
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4.8 ★★★★★
Based on 250 reviews
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Product Reviews
★★★★★ 5
fits well
went into my sisters 05 ford focus fit well and took about 45 min. to install. also a very good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2024
★★★★★ 5
Great deal
Works perfectly
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Reviewed in the United States on July 8, 2025
★★★★★ 5
Feliz 🙂
Súper buena resolví mi problema
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
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Reviewed in the United States on May 25, 2026
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